Model Number: AKB-BSH508M Key Specifications/Special Features: CSR chipset high quality Bluetooth earphoneCSR 86451.Compatible with all audio equipment with Bluetooth functions, such as PC, iPad, iPod, cellphone, tablet PC, MP32.CSR solution, HSP, HFP, A2DP, AVRCP3.Bluetooth protocol standards: Bluetooth V4.1 supported4.Receiver distance: 10m/360°5.Battery: chargeable 3.7V/80mAh lithium-ion battery6.Charging time: less than 2 hours7.Successive working time: about 6 hours8.Standby time: 180 hoursSpeaker diameter: Φ10mmImpedance: 32ΩS.P.L: 102dB S.P.L. at 1KHzRated power: 100mWFrequency response: 100Hz-9000HzMic type: capacitive
Microphone unit: Φ4*1.5mm
Directivity: whole direction
Sensitivity:
S.P.L: -42±3dB
Impedance: ≤2.2KΩ
Frequency response: 30-16,000Hz
Operating voltage: 4.5V